Re xxx 18" vs Dc lvl 4 XL 15"

[Tyler Lee 10+ year member]

Ok here's the deal I have a dc lvl 4 XL 15 right now that's d2 on my aq 2200.. I planned on salin the dc and gettin 2 of em that r d4 then I had a offer today to trade my sub and amp for the newer re xxx 18 and $350 for a re m2d2 amp he has also. I want to b n the high 40's or n the 50's. I hit a 145 at 38hz with my setup. Lemme get some opinions. Thanks

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[DonH 5,000+ posts]

two xl 15's... those xxx's are so impractacle to mount honestly lol. like 13" mounting depth! also when a xl blows re-cones are readily available

also this next comment is pertaining to your "meter score" want:

a setup can be **** BALLS LOUD to the ear and be horrible on the meter. a setup can sound dirty to the ear and meter well. IF your goal is only to meter high and say "look im loud" then build a box and tune it to what your car meters highest at. if this is a daily driver, dont even worry about SPL honestly. alot of guys come on forums saying they meter this they meter that on music. Who cares in all honesty lol. im sure ima upset some people with this but hey, every opinion is worth reading.

 

[The_Grimy_One 10+ year member]

Since it is a larger sub, it is possible that it will get louder in the right enclosure. BUT, the XXX is not an SPL sub. If I am not mistaken the XXX is more SQ-oriented, or SQL, and the DC is more SPL-oriented.

 

[Tyler Lee 10+ year member]

DonH it is a daily driver sub.. And I just wanna meter high just to make my self happy. Lol.. And yea I thought the xxx's were more sq to. The guy also has a SS Xxx 18 that I would love to have. But he wants my amp and sub and $600... Think I'll pass

 

[The_Grimy_One 10+ year member]

Yea, thats a bit overpriced... Fukc that.

 

[Tyler Lee 10+ year member]

So what would y'all guess be in db of the one 18" xxx and then 2 of my 15's? A guy at scrapin was hitting 149 with two of my subs. But he was n a magnum. I'm n a extended cab s10

 

[Ryan shaw 10+ year member]

xl's will meter louder, much more motor force than the xxx. but i would be willing to guess that the xxx 18 will sound much louder. some guy had one of the newer 18's and was pissed he couldnt break 145 with it, and then when i listened to it i was really surprised. he had a lot of flex and it sounded big and powerful. im sure this is a horrible generalization but from my experience, subs with more than 28mm of xmax or so typically dont meter as high but sound really loud in the car.

 

[T3mpest 10+ year member]

Subs with higher xmax tend to play louder lower. That's usually means more even SPL levels and a wider range of notes so while it may not be as loud at it's peak note, it's louder overall if your looking at the overall range of notes the sub is playing..

 

[Ryan shaw 10+ year member]

Motor force>xmax in ported box usually

 

[hispls 5,000+ posts]

Motor force>xmax in ported box usually

Not below 35hz.

 

[RAM_Designs 5,000+ posts]

Subs with higher xmax tend to play louder lower. That's usually means more even SPL levels and a wider range of notes so while it may not be as loud at it's peak note, it's louder overall if your looking at the overall range of notes the sub is playing..

I'll take a wider bandwidth any day of the week.